The New Challenge~ The First Lock

When she activated her magic, the suitcase glowed brightly, the auras of everyone who'd ever touched it blending together. It was beautiful.
She stopped. "I can't open it," she said.
"Really?" Adamantha said, raising an eyebrow. "I thought you had a grand plan or somesuch."
"I do have a plan, sort of. Grand might be an over statement..." Lux trailed off. "Fire, water, air and earth..."
She turned the suitcase over and looked at the other side. It was covered in tags from every destination imaginable, but one in particular caught her eye.
Seven times the ghost shall appear. Seven numbers. The first lock.
Lux blinked. "I don't know what that means... After all this time, I finally have it and I don't know what it means..."
"Time to contact the reinforcements?" suggested Adamantha.
Lux nodded grimly. "I believe so. Until we hear back from them, I am not letting this suitcase out of my sight."

*******

You read it. The ghostly projection has left seven numbers lying around various bloggy places. The first team to comment all of the numbers wins. For example, if the numbers were 1, 2, 3, 4, 5, 6 and 7, and Snow commented with 1, 3, 4 and 5, and Star commented 2, 6 and 7, they would have all the numbers between them, and they'd win. If you don't have a team yet, you can either contact me about teams or just participate. If you just participate, you are giving me permission to put you on whatever team needs more members at the time. Comment with any unanswered questions.